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肾皮、髓质表观弥散系数与慢性肾病滤过功能及病理改变的关系 被引量:3

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摘要 目的探讨慢性肾脏病(CKD)早期患者肾皮、髓质表观弥散系数(ADC)与滤过功能及病理改变的关系。方法对20例正常体检者(正常对照组)和18例CKD患者(病例组)在肾脏常规MRI扫描后行磁共振扩散加权成像(DWI)扫描。病例组均行99mTc-DTPA肾动态显像检查和肾穿刺活检术。比较肾皮、髓质ADC值与分肾肾小球滤过率(SKGFR)的相关性,同时分析其右肾皮、髓质ADC值与肾脏病理损害积分的相关性。结果两组肾皮质ADC值显著大于肾髓质(P<0.05),病例组肾皮、髓质ADC值均显著小于正常对照组(均P<0.05)。相关性分析结果显示,病例组分肾皮、髓质ADC值与分肾SKGFR均呈正相关(r=0.697、0.800,均P<0.05),病例组右肾皮、髓质ADC值与肾脏病理损害积分均呈负相关(r=-0.814、-0.800,P<0.01)。结论 DWI可能早于肾小球滤过率(GFR)发现肾脏损害,主要反映肾小球病变;测量的ADC值能一定程度上反映CKD的滤过功能及病理损害程度,对早期诊断CKD患者肾功能的损害具有重要价值。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2015年第4期946-947,948,共3页 Chinese Journal of Gerontology
基金 江西省卫生厅科技计划资助项目(20131067)
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参考文献10

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